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Thread: Primer popping out
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February 16th, 2019, 05:56 PM #1
Primer popping out
I just finished my first AR build and it turned out pretty great. I took it out and fired a single shot to test function. I picked up the brass and the primer was bubbled out. I’m curious what might be causing it and how dangerous it could be. My barrel is a heavy .223 Wylde from Wilson Combat. Ammo was factory Hornady .223 Rem. 55 grain V-Max.
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February 16th, 2019, 06:01 PM #2
Re: Primer popping out
Try different ammo and compare the expended primers.
How can you have any cookies if you don't drink your milk?
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February 16th, 2019, 06:18 PM #3
Re: Primer popping out
Primers popping out is an indicator of over pressure. Make sure you ammo is matched to your chamber. Over pressure can occur if the bullet itself is touching up against the rifling when the round is chambered indicating that your round is either incorrect for the chamber or the round itself is out of spec for cartridge length. There must be a certain amount of leade in the chamber for the round to fire correctly. This has been a problem with people using 5.56 x 45 NATO rounds in the chambers of firearms that are designed for .223 rounds. I don't have the specs for .223 Wylde but compare the specs yourself to see if they coincide and can be interchangeably used with .223.
Corruption is the default behavior of government officials. JPC
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February 17th, 2019, 01:58 AM #4
Re: Primer popping out
Wylde chamber is a little more ample than a stock .223 chamber, making contacting the lands with factory .223 ammo unlikely. Sounds more like excessive headspace, which will allow the primer to back out some. Have you checked the chamber/bolt with headspace gauges? Tried a fired case in a Wilson cartridge case gauge?
Last edited by Bang; February 17th, 2019 at 02:05 AM.
There are two kinds of guns. Those I have acquired, and those I hope to.
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February 17th, 2019, 02:06 PM #5
Re: Primer popping out
Yes, I checked headspace with Go and No Go gauges using my bolt. image1.jpgimage2.jpg
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February 17th, 2019, 03:17 PM #6
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